45 static void vx_pcm_read_per_bytes(struct vx_core *chip, struct snd_pcm_runtime *runtime,  in vx_pcm_read_per_bytes()  argument
49 	unsigned char *buf = (unsigned char *)(runtime->dma_area + offset);  in vx_pcm_read_per_bytes()
53 		buf = (unsigned char *)runtime->dma_area;  in vx_pcm_read_per_bytes()
58 		buf = (unsigned char *)runtime->dma_area;  in vx_pcm_read_per_bytes()
151 			 struct snd_pcm_runtime *runtime)  in vx_set_format()  argument
155 	if (runtime->channels == 1)  in vx_set_format()
157 	if (snd_pcm_format_little_endian(runtime->format))  in vx_set_format()
159 	if (runtime->rate < 32000 && runtime->rate > 11025)  in vx_set_format()
161 	else if (runtime->rate <= 11025)  in vx_set_format()
164 	switch (snd_pcm_format_physical_width(runtime->format)) {  in vx_set_format()
516 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_playback_open()  local
543 	runtime->hw = vx_pcm_playback_hw;  in vx_pcm_playback_open()
544 	runtime->hw.period_bytes_min = chip->ibl.size;  in vx_pcm_playback_open()
545 	runtime->private_data = pipe;  in vx_pcm_playback_open()
548 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 4);  in vx_pcm_playback_open()
549 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4);  in vx_pcm_playback_open()
562 	if (! subs->runtime->private_data)  in vx_pcm_playback_close()
565 	pipe = subs->runtime->private_data;  in vx_pcm_playback_close()
612 					  struct snd_pcm_runtime *runtime,  in vx_pcm_playback_transfer_chunk()  argument
634 	vx_pseudo_dma_write(chip, runtime, pipe, size);  in vx_pcm_playback_transfer_chunk()
649 				   struct snd_pcm_runtime *runtime,  in vx_update_pipe_position()  argument
666 	if (pipe->position >= (int)runtime->buffer_size)  in vx_update_pipe_position()
667 		pipe->position %= runtime->buffer_size;  in vx_update_pipe_position()
681 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_playback_transfer()  local
686 		err = vx_pcm_playback_transfer_chunk(chip, runtime, pipe,  in vx_pcm_playback_transfer()
702 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_playback_update()  local
705 		err = vx_update_pipe_position(chip, runtime, pipe);  in vx_pcm_playback_update()
708 		if (pipe->transferred >= (int)runtime->period_size) {  in vx_pcm_playback_update()
709 			pipe->transferred %= runtime->period_size;  in vx_pcm_playback_update()
721 	struct vx_pipe *pipe = subs->runtime->private_data;  in vx_pcm_trigger()
775 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_playback_pointer()  local
776 	struct vx_pipe *pipe = runtime->private_data;  in vx_pcm_playback_pointer()
786 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_prepare()  local
787 	struct vx_pipe *pipe = runtime->private_data;  in vx_pcm_prepare()
816 	if (chip->pcm_running && chip->freq != runtime->rate) {  in vx_pcm_prepare()
819 			runtime->rate, chip->freq);  in vx_pcm_prepare()
822 	vx_set_clock(chip, runtime->rate);  in vx_pcm_prepare()
824 	err = vx_set_format(chip, pipe, runtime);  in vx_pcm_prepare()
834 	pipe->buffer_bytes = frames_to_bytes(runtime, runtime->buffer_size);  in vx_pcm_prepare()
835 	pipe->period_bytes = frames_to_bytes(runtime, runtime->period_size);  in vx_pcm_prepare()
839 	vx_update_pipe_position(chip, runtime, pipe);  in vx_pcm_prepare()
891 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_capture_open()  local
934 	runtime->hw = vx_pcm_capture_hw;  in vx_pcm_capture_open()
935 	runtime->hw.period_bytes_min = chip->ibl.size;  in vx_pcm_capture_open()
936 	runtime->private_data = pipe;  in vx_pcm_capture_open()
939 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 4);  in vx_pcm_capture_open()
940 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4);  in vx_pcm_capture_open()
954 	if (! subs->runtime->private_data)  in vx_pcm_capture_close()
956 	pipe = subs->runtime->private_data;  in vx_pcm_capture_close()
988 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_capture_update()  local
993 	size = runtime->buffer_size - snd_pcm_capture_avail(runtime);  in vx_pcm_capture_update()
996 	size = frames_to_bytes(runtime, size);  in vx_pcm_capture_update()
1016 		vx_pcm_read_per_bytes(chip, runtime, pipe);  in vx_pcm_capture_update()
1024 			vx_pseudo_dma_read(chip, runtime, pipe, space);  in vx_pcm_capture_update()
1032 		vx_pcm_read_per_bytes(chip, runtime, pipe);  in vx_pcm_capture_update()
1040 		vx_pcm_read_per_bytes(chip, runtime, pipe);  in vx_pcm_capture_update()
1062 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_capture_pointer()  local
1063 	struct vx_pipe *pipe = runtime->private_data;  in vx_pcm_capture_pointer()
1064 	return bytes_to_frames(runtime, pipe->hw_ptr);  in vx_pcm_capture_pointer()